2021-05-24 16:55:29

by Jerome Brunet

[permalink] [raw]
Subject: [PATCH] ASoC: meson: use dev_err_probe

Use dev_err_probe() helper function to handle probe deferral.
It removes the open coded test for -EPROBE_DEFER but more importantly, it
sets the deferral reason in debugfs which is great for debugging.

Signed-off-by: Jerome Brunet <[email protected]>
---
sound/soc/meson/aiu.c | 17 +++++++----------
sound/soc/meson/axg-fifo.c | 11 +++++------
sound/soc/meson/axg-pdm.c | 9 +++------
sound/soc/meson/axg-spdifin.c | 6 ++----
sound/soc/meson/axg-spdifout.c | 6 ++----
sound/soc/meson/axg-tdm-formatter.c | 18 ++++++------------
sound/soc/meson/axg-tdm-interface.c | 10 ++++------
sound/soc/meson/meson-card-utils.c | 4 ++--
sound/soc/meson/t9015.c | 7 +++----
9 files changed, 34 insertions(+), 54 deletions(-)

diff --git a/sound/soc/meson/aiu.c b/sound/soc/meson/aiu.c
index ba15d5762b0b..37036adf14ce 100644
--- a/sound/soc/meson/aiu.c
+++ b/sound/soc/meson/aiu.c
@@ -219,31 +219,29 @@ static int aiu_clk_get(struct device *dev)

aiu->pclk = devm_clk_get(dev, "pclk");
if (IS_ERR(aiu->pclk)) {
- if (PTR_ERR(aiu->pclk) != -EPROBE_DEFER)
- dev_err(dev, "Can't get the aiu pclk\n");
+ dev_err_probe(dev, PTR_ERR(aiu->pclk),
+ "Can't get the aiu pclk\n");
return PTR_ERR(aiu->pclk);
}

aiu->spdif_mclk = devm_clk_get(dev, "spdif_mclk");
if (IS_ERR(aiu->spdif_mclk)) {
- if (PTR_ERR(aiu->spdif_mclk) != -EPROBE_DEFER)
- dev_err(dev, "Can't get the aiu spdif master clock\n");
+ dev_err_probe(dev, PTR_ERR(aiu->spdif_mclk),
+ "Can't get the aiu spdif master clock\n");
return PTR_ERR(aiu->spdif_mclk);
}

ret = aiu_clk_bulk_get(dev, aiu_i2s_ids, ARRAY_SIZE(aiu_i2s_ids),
&aiu->i2s);
if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "Can't get the i2s clocks\n");
+ dev_err_probe(dev, ret, "Can't get the i2s clocks\n");
return ret;
}

ret = aiu_clk_bulk_get(dev, aiu_spdif_ids, ARRAY_SIZE(aiu_spdif_ids),
&aiu->spdif);
if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "Can't get the spdif clocks\n");
+ dev_err_probe(dev, ret, "Can't get the spdif clocks\n");
return ret;
}

@@ -282,8 +280,7 @@ static int aiu_probe(struct platform_device *pdev)

ret = device_reset(dev);
if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "Failed to reset device\n");
+ dev_err_probe(dev, ret, "Failed to reset device\n");
return ret;
}

diff --git a/sound/soc/meson/axg-fifo.c b/sound/soc/meson/axg-fifo.c
index b9af2d513e09..d670a32d56ab 100644
--- a/sound/soc/meson/axg-fifo.c
+++ b/sound/soc/meson/axg-fifo.c
@@ -352,17 +352,16 @@ int axg_fifo_probe(struct platform_device *pdev)

fifo->pclk = devm_clk_get(dev, NULL);
if (IS_ERR(fifo->pclk)) {
- if (PTR_ERR(fifo->pclk) != -EPROBE_DEFER)
- dev_err(dev, "failed to get pclk: %ld\n",
- PTR_ERR(fifo->pclk));
+ dev_err_probe(dev, PTR_ERR(fifo->pclk),
+ "failed to get pclk: %ld\n", PTR_ERR(fifo->pclk));
return PTR_ERR(fifo->pclk);
}

fifo->arb = devm_reset_control_get_exclusive(dev, NULL);
if (IS_ERR(fifo->arb)) {
- if (PTR_ERR(fifo->arb) != -EPROBE_DEFER)
- dev_err(dev, "failed to get arb reset: %ld\n",
- PTR_ERR(fifo->arb));
+ dev_err_probe(dev, PTR_ERR(fifo->arb),
+ "failed to get arb reset: %ld\n",
+ PTR_ERR(fifo->arb));
return PTR_ERR(fifo->arb);
}

diff --git a/sound/soc/meson/axg-pdm.c b/sound/soc/meson/axg-pdm.c
index bfd37d49a73e..f630311b5b29 100644
--- a/sound/soc/meson/axg-pdm.c
+++ b/sound/soc/meson/axg-pdm.c
@@ -613,24 +613,21 @@ static int axg_pdm_probe(struct platform_device *pdev)
priv->pclk = devm_clk_get(dev, "pclk");
if (IS_ERR(priv->pclk)) {
ret = PTR_ERR(priv->pclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get pclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get pclk: %d\n", ret);
return ret;
}

priv->dclk = devm_clk_get(dev, "dclk");
if (IS_ERR(priv->dclk)) {
ret = PTR_ERR(priv->dclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get dclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get dclk: %d\n", ret);
return ret;
}

priv->sysclk = devm_clk_get(dev, "sysclk");
if (IS_ERR(priv->sysclk)) {
ret = PTR_ERR(priv->sysclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get dclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get dclk: %d\n", ret);
return ret;
}

diff --git a/sound/soc/meson/axg-spdifin.c b/sound/soc/meson/axg-spdifin.c
index d0d09f945b48..8f587c3bb5d7 100644
--- a/sound/soc/meson/axg-spdifin.c
+++ b/sound/soc/meson/axg-spdifin.c
@@ -481,16 +481,14 @@ static int axg_spdifin_probe(struct platform_device *pdev)
priv->pclk = devm_clk_get(dev, "pclk");
if (IS_ERR(priv->pclk)) {
ret = PTR_ERR(priv->pclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get pclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get pclk: %d\n", ret);
return ret;
}

priv->refclk = devm_clk_get(dev, "refclk");
if (IS_ERR(priv->refclk)) {
ret = PTR_ERR(priv->refclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get mclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get mclk: %d\n", ret);
return ret;
}

diff --git a/sound/soc/meson/axg-spdifout.c b/sound/soc/meson/axg-spdifout.c
index e769a5ee6e27..58e02f6898b7 100644
--- a/sound/soc/meson/axg-spdifout.c
+++ b/sound/soc/meson/axg-spdifout.c
@@ -424,16 +424,14 @@ static int axg_spdifout_probe(struct platform_device *pdev)
priv->pclk = devm_clk_get(dev, "pclk");
if (IS_ERR(priv->pclk)) {
ret = PTR_ERR(priv->pclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get pclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get pclk: %d\n", ret);
return ret;
}

priv->mclk = devm_clk_get(dev, "mclk");
if (IS_ERR(priv->mclk)) {
ret = PTR_ERR(priv->mclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get mclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get mclk: %d\n", ret);
return ret;
}

diff --git a/sound/soc/meson/axg-tdm-formatter.c b/sound/soc/meson/axg-tdm-formatter.c
index cab7fa2851aa..108f11e14006 100644
--- a/sound/soc/meson/axg-tdm-formatter.c
+++ b/sound/soc/meson/axg-tdm-formatter.c
@@ -284,8 +284,7 @@ int axg_tdm_formatter_probe(struct platform_device *pdev)
formatter->pclk = devm_clk_get(dev, "pclk");
if (IS_ERR(formatter->pclk)) {
ret = PTR_ERR(formatter->pclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get pclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get pclk: %d\n", ret);
return ret;
}

@@ -293,8 +292,7 @@ int axg_tdm_formatter_probe(struct platform_device *pdev)
formatter->sclk = devm_clk_get(dev, "sclk");
if (IS_ERR(formatter->sclk)) {
ret = PTR_ERR(formatter->sclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get sclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get sclk: %d\n", ret);
return ret;
}

@@ -302,8 +300,7 @@ int axg_tdm_formatter_probe(struct platform_device *pdev)
formatter->lrclk = devm_clk_get(dev, "lrclk");
if (IS_ERR(formatter->lrclk)) {
ret = PTR_ERR(formatter->lrclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get lrclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get lrclk: %d\n", ret);
return ret;
}

@@ -311,8 +308,7 @@ int axg_tdm_formatter_probe(struct platform_device *pdev)
formatter->sclk_sel = devm_clk_get(dev, "sclk_sel");
if (IS_ERR(formatter->sclk_sel)) {
ret = PTR_ERR(formatter->sclk_sel);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get sclk_sel: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get sclk_sel: %d\n", ret);
return ret;
}

@@ -320,8 +316,7 @@ int axg_tdm_formatter_probe(struct platform_device *pdev)
formatter->lrclk_sel = devm_clk_get(dev, "lrclk_sel");
if (IS_ERR(formatter->lrclk_sel)) {
ret = PTR_ERR(formatter->lrclk_sel);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get lrclk_sel: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get lrclk_sel: %d\n", ret);
return ret;
}

@@ -329,8 +324,7 @@ int axg_tdm_formatter_probe(struct platform_device *pdev)
formatter->reset = devm_reset_control_get_optional_exclusive(dev, NULL);
if (IS_ERR(formatter->reset)) {
ret = PTR_ERR(formatter->reset);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get reset: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get reset: %d\n", ret);
return ret;
}

diff --git a/sound/soc/meson/axg-tdm-interface.c b/sound/soc/meson/axg-tdm-interface.c
index 87cac440b369..a2c7f658f6b4 100644
--- a/sound/soc/meson/axg-tdm-interface.c
+++ b/sound/soc/meson/axg-tdm-interface.c
@@ -519,8 +519,7 @@ static int axg_tdm_iface_probe(struct platform_device *pdev)
iface->sclk = devm_clk_get(dev, "sclk");
if (IS_ERR(iface->sclk)) {
ret = PTR_ERR(iface->sclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get sclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get sclk: %d\n", ret);
return ret;
}

@@ -528,8 +527,7 @@ static int axg_tdm_iface_probe(struct platform_device *pdev)
iface->lrclk = devm_clk_get(dev, "lrclk");
if (IS_ERR(iface->lrclk)) {
ret = PTR_ERR(iface->lrclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get lrclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get lrclk: %d\n", ret);
return ret;
}

@@ -545,8 +543,8 @@ static int axg_tdm_iface_probe(struct platform_device *pdev)
if (ret == -ENOENT) {
iface->mclk = NULL;
} else {
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get mclk: %d\n", ret);
+ dev_err_probe(dev, ret, "failed to get mclk: %d\n",
+ ret);
return ret;
}
}
diff --git a/sound/soc/meson/meson-card-utils.c b/sound/soc/meson/meson-card-utils.c
index 300ac8be46ef..ac062c03cf33 100644
--- a/sound/soc/meson/meson-card-utils.c
+++ b/sound/soc/meson/meson-card-utils.c
@@ -86,8 +86,8 @@ int meson_card_parse_dai(struct snd_soc_card *card,
ret = of_parse_phandle_with_args(node, "sound-dai",
"#sound-dai-cells", 0, &args);
if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(card->dev, "can't parse dai %d\n", ret);
+ dev_err_probe(card->dev, ret,
+ "can't parse sound-dai at %pOFn\n", node);
return ret;
}
*dai_of_node = args.np;
diff --git a/sound/soc/meson/t9015.c b/sound/soc/meson/t9015.c
index 4c1349dd1e06..7ff16f51dbd4 100644
--- a/sound/soc/meson/t9015.c
+++ b/sound/soc/meson/t9015.c
@@ -259,15 +259,14 @@ static int t9015_probe(struct platform_device *pdev)

priv->pclk = devm_clk_get(dev, "pclk");
if (IS_ERR(priv->pclk)) {
- if (PTR_ERR(priv->pclk) != -EPROBE_DEFER)
- dev_err(dev, "failed to get core clock\n");
+ dev_err_probe(dev, PTR_ERR(priv->pclk),
+ "failed to get core clock\n");
return PTR_ERR(priv->pclk);
}

priv->avdd = devm_regulator_get(dev, "AVDD");
if (IS_ERR(priv->avdd)) {
- if (PTR_ERR(priv->avdd) != -EPROBE_DEFER)
- dev_err(dev, "failed to AVDD\n");
+ dev_err_probe(dev, PTR_ERR(priv->avdd), "failed to AVDD\n");
return PTR_ERR(priv->avdd);
}

--
2.32.0.rc0


2021-05-25 00:10:53

by Joe Perches

[permalink] [raw]
Subject: Re: [PATCH] ASoC: meson: use dev_err_probe

On Mon, 2021-05-24 at 18:51 +0200, Jerome Brunet wrote:
> Use dev_err_probe() helper function to handle probe deferral.
> It removes the open coded test for -EPROBE_DEFER but more importantly, it
> sets the deferral reason in debugfs which is great for debugging.

trivia:

It seems that the use of %ld, PTR_ERR(<foo>) isn't particularly
useful now as dev_err_probe already uses %pe to emit descriptive
error messages.


> diff --git a/sound/soc/meson/axg-fifo.c b/sound/soc/meson/axg-fifo.c
[]
> @@ -352,17 +352,16 @@ int axg_fifo_probe(struct platform_device *pdev)
> ?
>
> ? fifo->pclk = devm_clk_get(dev, NULL);
> ? if (IS_ERR(fifo->pclk)) {
> - if (PTR_ERR(fifo->pclk) != -EPROBE_DEFER)
> - dev_err(dev, "failed to get pclk: %ld\n",
> - PTR_ERR(fifo->pclk));
> + dev_err_probe(dev, PTR_ERR(fifo->pclk),
> + "failed to get pclk: %ld\n", PTR_ERR(fifo->pclk));

here.

> ? return PTR_ERR(fifo->pclk);
> ? }
> ?
>
> ? fifo->arb = devm_reset_control_get_exclusive(dev, NULL);
> ? if (IS_ERR(fifo->arb)) {
> - if (PTR_ERR(fifo->arb) != -EPROBE_DEFER)
> - dev_err(dev, "failed to get arb reset: %ld\n",
> - PTR_ERR(fifo->arb));
> + dev_err_probe(dev, PTR_ERR(fifo->arb),
> + "failed to get arb reset: %ld\n",
> + PTR_ERR(fifo->arb));

etc...


2021-05-25 08:23:49

by Jerome Brunet

[permalink] [raw]
Subject: Re: [PATCH] ASoC: meson: use dev_err_probe


On Tue 25 May 2021 at 02:07, Joe Perches <[email protected]> wrote:

> On Mon, 2021-05-24 at 18:51 +0200, Jerome Brunet wrote:
>> Use dev_err_probe() helper function to handle probe deferral.
>> It removes the open coded test for -EPROBE_DEFER but more importantly, it
>> sets the deferral reason in debugfs which is great for debugging.
>
> trivia:
>
> It seems that the use of %ld, PTR_ERR(<foo>) isn't particularly
> useful now as dev_err_probe already uses %pe to emit descriptive
> error messages.

Indeed. I'll update. Thx for pointing this out.

>
>
>> diff --git a/sound/soc/meson/axg-fifo.c b/sound/soc/meson/axg-fifo.c
> []
>> @@ -352,17 +352,16 @@ int axg_fifo_probe(struct platform_device *pdev)
>>
>>
>> fifo->pclk = devm_clk_get(dev, NULL);
>> if (IS_ERR(fifo->pclk)) {
>> - if (PTR_ERR(fifo->pclk) != -EPROBE_DEFER)
>> - dev_err(dev, "failed to get pclk: %ld\n",
>> - PTR_ERR(fifo->pclk));
>> + dev_err_probe(dev, PTR_ERR(fifo->pclk),
>> + "failed to get pclk: %ld\n", PTR_ERR(fifo->pclk));
>
> here.
>
>> return PTR_ERR(fifo->pclk);
>> }
>>
>>
>> fifo->arb = devm_reset_control_get_exclusive(dev, NULL);
>> if (IS_ERR(fifo->arb)) {
>> - if (PTR_ERR(fifo->arb) != -EPROBE_DEFER)
>> - dev_err(dev, "failed to get arb reset: %ld\n",
>> - PTR_ERR(fifo->arb));
>> + dev_err_probe(dev, PTR_ERR(fifo->arb),
>> + "failed to get arb reset: %ld\n",
>> + PTR_ERR(fifo->arb));
>
> etc...